मराठी

Give Equation for the Following Conversion:Aluminium to Sodium Aluminate.

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प्रश्न

Give equation for the following conversion:Aluminium to sodium aluminate.

एका वाक्यात उत्तर
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उत्तर

Al2O3 + 2H2O + 2NaOH → 2NaAlO2 + 3H2O

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पाठ 7: Metallurgy - Exercises [पृष्ठ १७४]

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फ्रँक Chemistry Part 2 [English] Class 10 ICSE
पाठ 7 Metallurgy
Exercises | Q 21. (d) | पृष्ठ १७४

संबंधित प्रश्‍न

Give appropriate scientific reasons for Zinc oxide can be reduced to zinc metal by using
carbon, but aluminium oxide cannot be reduced by a reducing agent


How is the following metallic oxide reduced? Write equations:

Iron (ll) oxide


Explain with reason: 

In the electrolytic reduction of alumina, the graphite anode is gradually consumed.


Give reason for the following:
Carbon anodes are used in the electrolytic extraction of aluminium.


Name a non-metallic element which has a metallic lustre


With reference to the reduction of copper (II) oxide , iron (II) oxide, lead (II) oxide and magnesium oxide; place the oxides in order of increasing ease of reduction.[i.e. first write the oxide that is most difficult to reduce and at last, the oxide, that is most easily reduced.]


In order to obtain one tone of aluminium, the following inputs are required:
4 tones of bauxite, 150 Kg of sodium hydroxide and 600 Kg of graphite.
The aluminium compound in bauxite is aluminium oxide and the main impurity is iron (II) oxide. Aluminium is obtained by the electrolysis of aluminium oxide dissolved in cryolite.
(a) When bauxite is treated with sodium hydroxide solution, what happens to:
(i) the aluminium oxide?
(ii) The iron (III) oxide?

Answer the following question :
Name the process used for the enrichment of sulphide ore.


Complete the following by selecting the correct option from the choices given :
The diavalent metal whose oxide is reduced to metal by electrolysis of its fused salt is ________


Write the observation for the following:
A paper dipped in potassium permanganate solution is put on the mouth of a test tube containing sulphur dioxide gas.


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